Q. How many subnets can be created from a Class C network using a /28 subnet mask?
Solution
A /28 subnet mask allows for 16 subnets (2^(28-24)), as Class C networks have a default mask of /24.
Correct Answer:
C
— 16
Learn More →
Q. If a network has a subnet mask of /22, how many hosts can it support?
-
A.
1022
-
B.
1024
-
C.
2046
-
D.
2048
Solution
A /22 subnet mask allows for 2^(32-22) = 1024 total addresses, minus 2 for network and broadcast addresses, resulting in 1022 usable hosts.
Correct Answer:
C
— 2046
Learn More →
Q. In subnetting, what does the term 'supernetting' refer to?
-
A.
Combining multiple subnets into a larger network
-
B.
Dividing a network into smaller subnets
-
C.
Changing the subnet mask
-
D.
None of the above
Solution
Supernetting refers to the practice of combining multiple smaller subnets into a larger network to reduce the size of routing tables.
Correct Answer:
A
— Combining multiple subnets into a larger network
Learn More →
Q. What does CIDR stand for in the context of subnetting?
-
A.
Classless Inter-Domain Routing
-
B.
Classful Inter-Domain Routing
-
C.
Common Inter-Domain Routing
-
D.
Centralized Inter-Domain Routing
Solution
CIDR stands for Classless Inter-Domain Routing, which allows for more flexible allocation of IP addresses than traditional classful addressing.
Correct Answer:
A
— Classless Inter-Domain Routing
Learn More →
Q. What is the first usable IP address in the subnet 10.0.0.0/8?
-
A.
10.0.0.0
-
B.
10.0.0.1
-
C.
10.0.0.255
-
D.
10.255.255.255
Solution
The first usable IP address in the subnet 10.0.0.0/8 is 10.0.0.1, as 10.0.0.0 is the network address.
Correct Answer:
B
— 10.0.0.1
Learn More →
Q. What is the maximum number of subnets that can be created from a Class C network with a default subnet mask?
Solution
A Class C network with a default subnet mask of 255.255.255.0 can be subnetted into 8 subnets by borrowing 3 bits from the host portion.
Correct Answer:
C
— 8
Learn More →
Q. What is the primary benefit of using VLSM (Variable Length Subnet Masking)?
-
A.
Simplifies routing tables
-
B.
Reduces IP address wastage
-
C.
Increases network speed
-
D.
Enhances security
Solution
VLSM allows for subnets of different sizes, which helps to reduce IP address wastage by allocating only as many addresses as needed for each subnet.
Correct Answer:
B
— Reduces IP address wastage
Learn More →
Q. Which of the following IP addresses belongs to the subnet 10.0.0.0/8?
-
A.
10.1.1.1
-
B.
192.168.1.1
-
C.
172.16.0.1
-
D.
10.255.255.255
Solution
Both 10.1.1.1 and 10.255.255.255 belong to the 10.0.0.0/8 subnet, as they fall within the range defined by that subnet.
Correct Answer:
A
— 10.1.1.1
Learn More →
Q. Which of the following is a valid private IP address?
-
A.
192.168.1.1
-
B.
172.16.0.1
-
C.
10.0.0.1
-
D.
All of the above
Solution
All listed IP addresses are private IP addresses as defined by RFC 1918.
Correct Answer:
D
— All of the above
Learn More →
Q. Which of the following is a valid subnet for the IP address 192.168.1.0?
-
A.
192.168.1.128/25
-
B.
192.168.1.256/24
-
C.
192.168.1.0/33
-
D.
192.168.1.0/24
Solution
192.168.1.128/25 is a valid subnet, as it correctly divides the 192.168.1.0 network into two subnets, each with 128 addresses.
Correct Answer:
A
— 192.168.1.128/25
Learn More →
Q. Which protocol is commonly used for dynamic IP address allocation in a subnet?
-
A.
DHCP
-
B.
ARP
-
C.
ICMP
-
D.
RIP
Solution
DHCP (Dynamic Host Configuration Protocol) is used to dynamically assign IP addresses to devices within a subnet.
Correct Answer:
A
— DHCP
Learn More →
Showing 1 to 11 of 11 (1 Pages)
